Nemertodermatida

Nemertodermatida is a class of Acoela, comprising 18 species of millimetre-sized 'tubellariform', mostly interstitial worms. The order Nemertodermatida contains two families with 6 genera. The family Ascopariidae Sterrer 1998 contains two genera. There are 3 species in the family Ascopariidae. The family Nemertodermatidae Steinböck 1930 contains four genera. There are 15 species in the family Nemertodermatidae.